Camera information recording apparatus

ABSTRACT

A camera has a recording apparatus for magnetically recording finished photograph information, indicating exposure of a film frame, and for magnetically recording other photograph information for each film frame. The finished photograph information is recorded at a designated film area, while a film feed motor is in a transient speed state. Other photograph information is recorded in a designated film area when the film feed motor speed is constant. Appropriate positioning of the designated recording areas for recording information therein is determined by counting film perforations or by measuring a period of time during film feed subsequent to an exposure.

This is a continuation of application Ser. No. 08/201,085 filed Feb. 24,1994, now abandoned, which is a continuation of application Ser. No.07/975,122 filed Nov. 12, 1992, which is a continuation of applicationSer. No. 07/726,813 filed Jul. 8, 1991, both of which are abandoned.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates, in a camera, to a finished photographinformation recording apparatus for recording information on whether ornot a photographing has been finished at every exposure of a film.

2. Related Background Art

Where a photographing condition changes, or, for example, a subject oflow brightness in a room is photographed after a subject of highbrightness is photographed under an extraneous light, there may be acase in which a film of another photosensitivity will be used forphotographing. In such a case, the film is rewound to a cartridge,extracted from a camera, and after photographing the subject by adesired film, the previous film is loaded again.

In this case, an unexposed portion of the reloaded film must be placedin a predetermined position to photograph, that is, kept facing towardan aperture. Such positioning may be realized by the following methods:

(1) Information on the finished photograph exposure number is recordedin a film or a catridge, and then reproduced to feed an unexposedportion of the film to a position to photograph.

(2) An ID for specifying a film used is recorded in a film or acartridge, reproduced then to read finished photograph exposure numberinformation of a film of the ID, and an unexposed portion of the film isfed to a predetermined position to photograph.

(3) Information on whether or not a photographing has been finished isrecorded additionally in an area for recording trimming information ofeach exposure of a film and data information, reproduced then to feedthe film and where there remains a portion unexposed, the film isstopped at the exposed position.

The methods (1) to (3) above are premised subject to informationrecorded in the film or cartridge being reproduced securely.

Be that as it may, information is capable of being not reproducedsecurely at the time of reproduction due to problems such as variousnoises arising within a camera, a tracking error to a record track on afilm in which information is recorded, and crosstalk arising fromwriting information repeatedly on the same portion.

According to the method (3), since information on whether or not aphotographing has been finished is recorded in the area for recordinginformation on each photograph exposure, the area for recordingphotograph information is lessened inevitably.

SUMMARY OF THE INVENTION

An object of the present invention is to provide, in a camera, finishedphotograph information recording apparatus for recording information onwhether or not a photographing has been finished outside an area whereinother photograph information for each exposure is recorded.

Another object of the present invention is to provide, in a camerainformation recording apparatus capable of recording photographinformation, such as trimming information, data information and thelike, in a photograph information recording area for each exposure,uniformly in recording density so as to reproduce it securely.

A further object of the present invention is to provide a camera capableof placing an unexposed portion of a film in position opposite to anaperture so as not to leave a blank portion for one exposure.

Referring now to FIG. 1 representing one embodiment, the presentinvention is applied, in a camera, to a finished photograph informationrecording apparatus for recording finished photograph information onwhether or not each exposure of a film has been made, photographedmagnetically in the film. Photographed The finished photographinformation shows that exposure has been made.

The aforementioned object will be attained by providing film feed meansM, 1 for winding and rewinding a film, recording position detectionmeans PS, 4 for detecting a position to record finished photographinformation at a front end and/or a rear end of each film frame orexposure, finished photograph information recording means MH, 2 forrecording information in a film, and control means 5 for recordingfinished photograph information of an exposure through the recordingmeans MH, 2 when a position to record the finished photographinformation is detected by the recording position detection means PS, 4at the time when a film is fed.

If the position to record finished photograph information is detected bythe recording position detection means PS, 4 when the film is fed by thefilm feed means M, 1, the control circuit 5 records the finishedphotograph information of an exposure through the recording means MH, 2.

In this connection, an illustration of an embodiment has been used fordescribing a construction of the invention; however, the presentinvention is not necessarily limited to the embodiment only.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram representing one embodiment of the invention;

FIG. 2A is a drawing exemplifying a film used for the invention;

FIG. 2B is a time chart indicating waveforms of each part of theapparatus when the film is fed;

FIG. 3 is a flowchart exemplifying a finished photograph informationrecording program;

FIG. 4 is a flowchart exemplifying an alternative thereof;

FIG. 5 is a flowchart showing another finished photograph informationrecording control program;

FIGS. 6A, 6B are drawings exemplifying other films;

FIG. 7 is a time chart indicating waveforms of each part of theapparatus when the films are fed;

FIG. 8 is a flowchart showing a control program for recording finishedphotograph information at the time of film rewinding;

FIG. 9 is a flowchart showing the control program when a film isreloaded.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 1 is a block diagram representing one embodiment of the presentinvention.

A reference character 1 denotes a motor drive circuit, driving the filmfeed motor M for winding and rewinding of a film. A reference character2 denotes a record circuit, recording various items of information in afilm through the recording/reproducing magnetic head MH connectedthereto. A reference character 3 denotes a reproducing circuit,reproducing various items of information recorded on the film throughthe magnetic head MH connected thereto. HD denotes a head drive circuit,operating to drive the magnetic head MH longitudinally of a filmsurface, and to bring the magnetic head MH into contact with the filmonly when recording/reproducing information against the film.

A reference character 4 denotes a photoelectric conversion circuit,detecting perforations on the film by a photoelectric element PS such asphotoreflector or the like which is connected thereto. A perforationdetection signal generated thereby is sent to the control circuit 5described herein-later for counting the number of frames of a film andplacing each exposure portion in a predetermined position to photograph.

A reference character SW1 denotes a shutter release half-push switch,which is turned on at the time of shutter release half-push. A referencecharacter SW2 denotes a shutter release full-push switch, which isturned on at the time of shutter release full-push. Further, SW3 denotesa camera back switch, which is turned on when a camera back is opened.

A reference character 5 denotes a control circuit comprising peripheralparts such as a microcomputer, memory 5m and others, running a controlprogram which will be described hereinlater to control the motor drivecircuit 1, the record circuit 2 and the reproducing circuit 3 accordingto signals from the switches SW1 to SW3 and the photoelectric conversioncircuit 4.

Further, 6 denotes a light meter, measuring light within a photographscreen to output brightness information. A reference character 7 denotesa distance meter, measuring a distance of a subject (not indicated) tooutput distance information. A reference character 8 denotes an exposurecontroller, controlling a shutter mechanism and a diaphragm mechanism(both not indicated).

FIG. 2A is an illustration exemplifying a photographing film used forthe embodiment, and FIG. 2B is a time chart showing a perforationdetection wave detected by the photoelectric conversion circuit 4, adrive command of the feed motor M which is outputted from the controlcircuit 5 to the motor drive circuit 1, a speed of the feed motor M andan information record signal outputted from the control circuit 5 to therecord circuit 2.

Perforations 11 are provided on one side of a film 10, and a photographinformation storage area 12 and finished photograph information storageareas 13a, 13b are set on the other side. The term "finished photographinformation" designates information indicating that a corresponding filmframe has been exposed. The term "photograph information" (asdistinguished from "finished photograph information") designatesinformation other than "finished photograph information." Such otherphotograph information may include, e.g., trimming information, theexposure value, the exposure date, etc., as stated earlier andhereinafter.

When recording photograph information for each exposure in the film, itis preferable that the information be recorded uniformly in recordingdensity in all spots so as to avoid a read error at the time ofreproducing as mentioned hereinbefore. However, the film 10 is wound byone exposure by the feed motor M whenever an exposure is finished. Inthis case, as shown in FIG. 2B, the speed of feed motor M does not riseso soon and increases slowly against the drive command of the feed motorM. Further, if the drive command of the motor M comes to a low level atthe time of fall of a detection puse signal of a perforation 11b andthus a stop command is given out, the motor M does not stop right awayand decreases its speed slowly. Thus, a feed speed changes at a frontend portion of each exposure according to a rise of speed of the motorM, and the feed speed changes at a rear end portion of each exposureaccording to a fall of speed of the motor M. If these front end portionand rear end portion of each exposure are intended for a recording areaof the photograph information, then a recording density of theinformation will not be uniform, which is not preferable for realizing asecure reproduction.

Accordingly, the area 12 excluding the front end portion and rear endportion of each exposure where the film is fed at a constant rate tosecure a uniform recording density is assigned to a recording area ofthe photograph information.

On the other hand, the area 13a of the front end portion or the area 13bof the rear end portion of each exposure which is not appropriate as aphotograph information recording area is assigned to the finishedphotograph information recording area. Thus, the area not appropriate asan information recording area is intended for the finished photographinformation recording area to realize a secure reproduction, thereforethe information recording method will be defined as follows. That is,when an exposure has already been made, a signal of such frequency as ishigher than a signal frequency of the photograph information or of adifferent frequency band is generated in the record circuit 2, and isrecorded in the area 13a or 13b through the magnetic head MH. On theother hand, if there is no exposure, then nothing will be recorded.

Finished photograph information recorded according to such recordingmethod is reproduced by the magnetic head MH and the reproducing circuit3, and whether or not the photographing is finished can easily bediscriminated. In other words, when the magnetic head MH passes the area13a or 13b, if a pulse signal of frequency higher than a signalfrequency of the photograph information or of different frequency bandis detected, it is decided that the exposure has already been made, butif not, then the film frame is left unexposed for photographing.

As described above, while the front end portion or rear end portion ofeach exposure is assigned to a finished photograph information recordingarea, both the front and rear end portions may be assigned to thefinished photograph information recording area. Further, a method forrecording the finished photograph information is not necessarily limitedto the method mentioned above, and any method may be employed subject tosecuring a reproduction by simple information and distinguishing easilyfrom the photograph information. Still further, the number ofperforations is not limited to the number shown in FIG. 2A.

FIG. 3 is a flowchart showing a control program for recording thefinished photograph information which is run by the control circuit 5.The control program is intended for recording the finished photographinformation in the front end area 13a of each exposure shown in FIG. 2A.An operation of the finished photograph information recording apparatuswill be described with reference to FIG. 1 to FIG. 3. In advance torunning the control program, the magnetic head MH is pushed to the film10 by the head drive circuit HD and thus is ready for recording andreproducing information.

In step S1, whether or not a shutter release is pushed half by theswitch SW1 is discriminated, and the step is repeated until it is pushedso. When the shutter release is pushed half, the flow proceeds to stepS2, where light within a photograph screen is measured by the lightmeter 6, and distance of a subject is measured by the distance meter 7,thereby focusing a photographing lens.

In step S3, whether or not the shutter release is pushed full by theswitch SW2 is discriminated, and the step is repeated until it is pushedso. When the shutter release is pushed full, the flow proceeds to stepS4, where shutter speed and diaphragm values are calculated by theexposure controller 8, and the shutter mechanism and the diaphragmmechanism are controlled for exposure according to the exposure values.

When the photographing is over, the flow proceeds to step S5, whereexposure values at the time of photographing in the above step, trimminginformation, photograph information such as photographed date and othersand finished photograph information indicating that the photographing isfinished are stored in the memory 5m. In the ensuing step S6, the feedmotor M is actuated to run normally through the motor drive circuit 1,thus commencing a winding of the film 10.

In step S7 immediately after commencing the winding of the film 10, arecording of the finished photograph information is commenced in thefront end area 13a of an exposure 14 according to the above-describedrecording method, and in the ensuing step S8, the perforations 11 on thefilm are detected by the photoelectric element PS and the photoelectricconversion circuit 4, whether or not the recording area 12 of photographinformation has reached the recording position is discriminated, and ifso, the flow proceeds to step S9, but if not, then the flow returns tostep S7. In step S9, the recording of the finished photographinformation is stopped and the photograph information stored in thememory 5m in step S5 is read out, and the photograph information isrecorded through the record circuit 2. In the ensuing step S10, adetermination is made as to whether or not a predetermined number ofperforations 11 have been detected after commencing the winding in stepS6, that is, whether or not a winding by one exposure has been finishedis discriminated, and if finished, the flow proceeds to step S11 to stopthe film feed motor M, but if not, then the flow returns to step S9 togo on with recording the photograph information. When the above processis over, the program run is closed.

As described above, the finishing photograph information is recorded inthe area 13a where a film feed rate after commencing the winding is notconstant according to the method, whereby whether or not a photographinghas been finished can easily be discriminated at the time ofreproducing. Therefore an unexposed film portion can be identifiedsecurely at the time of reproducing without reducing the recording area12 of the photograph information.

In the aforementioned control program, a recording of the finishedphotograph information is commenced in a timing immediately after a feedof the film 10 is commenced from rotating the film feed motor Mnormally, and when appropriate positioning of the recording area 12 ofthe photograph information through detection of the perforations 11 onthe film, a recording of the finished photograph information is stopped.However, as shown in step S8' of FIG. 4, the finished photographinformation may be recorded for a predetermined period of time after thepoint in time when a recording of the finished photograph information iscommenced, using a timer, and then the recording of the finishedphotograph information may be stopped after the lapse of a predeterminedperiod of time.

FIG. 5 is a flowchart showing another example of the control program forrecording finished photograph information. The control program isintended for recording the finished photograph information in the rearend area 13b of each exposure shown in FIG. 2. The processing stepssimilar to the control program shown in FIG. 3 are numbered likewise anda description is given centrally of the difference.

In step S6 the film feed motor M is actuated to run normally to commencea winding of the film 10, and then the flow proceeds to step S21 where atimer is operated to see whether or not a predetermined time has passed.The flow then proceeds to step S22, where a recording of the photographinformation is commenced, and in the ensuing step S23, whether or notthe finished photograph information recording area 13b comes intoposition is discriminated. The finished photograph information recordingarea 13b is detected by counting a predetermined number of theperforations 11 on the film fed. In step S23 if the finished photographinformation recording area 13b is so identified, the flow proceeds tostep S24 to stop recording of the photograph information, and then arecording of the finished photograph information is commenced in stepS25. In the ensuing step S26, whether or not a film winding by oneexposure is finished is discriminated by the number of perforationscounted after start of the winding, the recording of the finishedphotograph information is kept going until it is finished, and when thewinding by one exposure is finished, the flow proceeds to step S27 tostop the recording of the finished photograph information. Further, inthe ensuing step S28, the film feed motor M is stopped to close theprogram run.

As described above, the finished photograph information is recorded inthe area 13b where a film feed rate immediately before a film winding byone exposure is closed is not constant whereby whether or not aphotographing is finished can easily be discriminated at the time ofreproducing. Therefore an unexposed portion can be identified securelyat the time of reproducing without reducing the photograph informationrecording area 12.

In the aforementioned program, the finished photograph informationrecording area 13b is detected according to a result obtained fromcounting the perforations on the film, and thus a recording of thefinished photograph information is commenced. However, the recording ofthe finished photograph information may be commenced in a timing when arecording of the photograph information is over.

FIG. 6A shows a film 10a provided with 2 perforations against eachexposure, indicating a state where an unexposed portion 14b stopsopposite to the aperture from feeding the film by one exposure in thedirection indicated by an arrow after an exposure 14a is made. In theillustration, PS represents a position whereat a photoelectric elementis provided, and MH represents a position whereat a magnetic head isprovided.

When a photographing is over against the exposure 14a, the film 10a iswound by one exposure and stops as shown in FIG. 6A. The finishedphotograph information can also be recorded likewise against such film10a.

When the finished photograph information is recorded in the front endarea 13a of an exposure, a recording of the finished photographinformation is commenced after the film feed motor M is actuated to runnormally to commence a winding, and after a predetermined period of timethe recording of the finished photograph information is stopped tocommence a recording of the photograph information.

When recording the finished photograph information in the rear end area13b of the exposure, a recording of the photograph information iscommenced after a predetermined time from commencing a film winding, andwhen a perforation 11c shown in FIG. 6A is detected by the photoelectricelement PS, the recording of the photograph information is stopped, anda duty drive of the feed motor M is commenced for placing the unexposedportion 14b accurately in a position opposite to the aperture. Therecording of the finished photograph information is also commenced in atiming when the duty drive of the feed motor M is commenced. Further,when the photoelectric element PS detects the next perforation 11d, theduty drive of the feed motor M is stopped to stop feed of the film 10a,and the recording of the finished photograph information is stopped.

FIG. 7 shows a perforation detection wave in this case, an appliedvoltage wave of the feed motor M, and an information record signal wave.Normally, a duty drive of the feed motor M for placing the film inposition is carried out by applying a supply voltage Vr to a drivingelectrode of the feed motor M repeatedly at a predetermined duty ratio;therefore noise is produced incidentally. A recording of information onthe film is capable of causing a recording/reproducing error ofinformation. However, according to the aforementioned method forrecording the finished photograph information, the information is simplythat of repeating a high level and a low level at high frequency.Therefore an influence of the noise is nothing serious, and moreover therecording area 12 is free from being influenced by the noise.

As described above, in case the finished photograph information isrecorded in the rear end area 13b of an exposure, the recording may becommenced in a timing when a duty drive of the feed motor M iscommenced.

In this connection, the timing of closing a recording of the photographinformation is not particularly limited to the above-describedembodiment, and thus, as shown in FIG. 6B, the recording of thephotograph information may be closed at the point in time when therecording of the photograph information of the exposure comes all to anend.

In the above-described embodiment, an arrangement is such that thefinished photograph information and the photograph information arerecorded when a photograph-finished film is wound, however, informationmay be recorded otherwise at every exposure when the film is rewound toa film cartridge.

FIG. 8 is a flowchart showing a control program for recording thephotograph information and the finished photograph information in a filmat the time of rewinding. Then, like reference characters represent likeprocess steps given in FIG. 3, and hence a further description will beomitted thereof.

After the film feed motor M is actuated to run normally in step S6, theflow proceeds to step S31, where whether or not a winding by oneexposure is finished is discriminated, and the feed motor M is keptrunning normally until the winding is finished. When the winding by oneexposure is finished, the flow proceeds to step S32, where the film feedmotor M is stopped.

Next in step S33, whether or not a film rewinding command is inputted isdiscriminated, and if the rewinding command is inputted, the flowproceeds to step S34, but if not, then the flow returns to step S1. Instep S34 next, the film feed motor M is reversed to commence a filmrewinding, and in the ensuing step S35, a recording of the finishedphotograph information is commenced. That is, the finished photographinformation is recorded in the rear end area 13b of an exposure. In stepS36, whether or not a position to record the photograph informationcomes is discriminated, and the step is repeated until the position torecord the photograph information comes. When the position to record thephotograph information comes, the flow proceeds to step S37, where arecording of the finished photograph information is stopped, and thenthe flow proceeds to step S38. In step S38, photograph information ofthe exposure is read from the memory 5m, the recording is commenced andthen the flow proceeds to step S38, where the process is kept goinguntil a position to stop recording of the photograph information comes.

Next in step S40, whether or not a rewinding by one exposure is finishedis discriminated, and the rewinding is continued until a film is rewoundcompletely by one exposure. When the rewinding by one exposure isfinished, the flow proceeds to step S41, where whether or notinformation has been recorded in all exposures is discriminated, and ifnot finished, then the flow returns to step S35 to record the finishedphotograph information and the photograph information to the nextexposure. When a recording of the finished photograph information andthe photograph information is finished to all exposures, the flowproceeds to step S42, where whether or not the film is rewoundcompletely to a cartridge is discriminated, and the feed motor M is keptreversed until the rewinding is finished. When the rewinding is over,the flow proceeds to step S43, the film feed motor M is stoppedreversing, and the program run is closed.

Thus, the photograph information and the finished photograph informationare stored in the memory 5m at every exposures, and the photographinformation and the finished photograph information are read from thememory 5m at every exposures to recording at the time of film rewinding.

While the finished photograph information is recorded in the rear endarea 13b of each exposure in the aforementioned program, the finishedphotograph information may be recorded in the front end area 13a or inboth otherwise.

Next described is an operation for feeding an unexposed portion to aposition opposite to the aperture when the film in which the finishedphotograph information is recorded as above is reloaded.

FIG. 9 shows a control program at the time of film reloading.

In step S50, whether or not a camera back is closed by the switch SW3 isdiscriminated, the step being repeated until it is closed perfectly, andwhen it is closed, the flow proceeds to step S51. In step S51, whetheror not the film is loaded is discriminated by a cartridge switch (notindicated), and if loaded, the flow proceeds to step S52, but if not,then the program run is closed. In step S52, the film feed motor M isactuated to run normally to commence a winding of the film. In theensuing step S53, whether or not the film is wound up to the firstexposure is discriminated, and the step is repeated until the firstexposure is obtained. When the film is wound up to the first exposure,the flow proceeds to step S54, where the magnetic head MH is touched tothe film by the head driving device HD, and then the flow proceeds tostep S55 to commence a reproduction of information recorded in the film.In the ensuing step S56, whether or not the finished photographinformation is detected, that is, whether or not a pulse signal of afrequency higher than the signal frequency of photograph information orof a different frequency band is detected through therecording/reproducing circuit 3 is discriminated, and if detected, theflow returns to step S55, but if not, indicating an unexposed portion,then the flow proceeds to step S57. In step S57 the film feed motor M isstopped running normally, and in the ensuing step S58 the feed motor Mis reversed to rewind the film by one exposure. That is, the unexposedportion is placed in a position opposite to the aperture. When the aboveprocess is over, the program run is closed.

As described, when the film is rewound on the way to photographing andthe film extracted from a camera is reloaded, the film is wound forreproducing the finished photograph information, and the unexposedportion thus detected is set to a predetermined position to photograph.Then in this case, if a plurality of pulse signals with high frequencyare detected by the reproducing circuit 3 when the magnetic head MHpasses the finished photograph information recording areas 13a, 13b, anexposure already photographed, is detected and if nothing has beendetected, then an unexposed portion is indicated. Thus whether or not anexposure has been made can be identified securely without beinginfluenced by problems such as noise within the camera, tracking errorof information recording tracks, crosstalk and the like, and furthersince the signal frequency is high, it is distinguished definitely fromthe photograph information.

In the above-described embodiment, the film feed motor M and the motordrive circuit 1 construct film feed means, the photoelectric element PS,the photoelectric conversion circuit 4 and others construct recordingposition detection means, the magnetic head MH and the record circuit 2construct finished photograph information recording means, and thecontrol circuit 5 constructs control means.

A described above, according to the present invention, finishedphotograph information on whether or not an exposure has been made isrecorded in a finished photograph information recording area at thefront end and/or rear end of each exposure area, which is notappropriate as the area to record photograph information. Therefore thefinished photograph information can be recorded without reducing thearea to record the photograph information such as exposure value andothers.

What is claimed is:
 1. Information recording apparatus in a camerahaving exposing means for exposing successive film frames,comprising:film feed means having a motor for feeding a film havingsuccessive frames, the motor having transient speed states duringstarting and stopping of the feeding of each film frame and having asubstantially constant speed state between the transient speed statesfor the feeding of each film frame; recording means responsive to saidexposing means for recording finished photograph information indicatingthat a corresponding film frame has been exposed, and control means forcausing said recording means to record finished photograph informationonly while said motor is in a transient speed state.
 2. The apparatus asdefined in claim 1, wherein the film has a designated recording area,adjacent to at least one of front and rear ends of each film frame, forthe recording of finished photograph information, and wherein saidcontrol means causes said recording means to record finished photographinformation only in a designated recording area.
 3. The apparatus asdefined in claim 2, wherein the film has further designated recordingareas for the recording of photograph information other than finishedphotographed information, and wherein said control means causes saidrecording means to record other photograph information in a furtherdesignated recording area only while said motor is in the substantiallyconstant speed state.
 4. The apparatus as defined in claim 3, whereinsaid control means has recording position detecting means for detectingthat at least one of a designated recording area and a furtherdesignated recording area is positioned relative to said recording meansfor recording therein.
 5. The apparatus as defined in claim 4, whereinsaid recording position detecting means comprises means for determiningthat a predetermined length of film has been fed during the feeding ofeach film frame.
 6. The apparatus as defined in claim 4, wherein saidrecording position detection means comprises means for determining thata predetermined period of time has elapsed during the feeding of eachfilm frame.
 7. The apparatus as defined in claim 1, wherein said filmfeed means is capable of winding and rewinding said film, and saidcontrol means causes said recording means to record finished photographinformation during film rewinding.
 8. Information recording apparatus ina camera, comprising:film feed means having a motor for feeding a film,the motor having a transient speed state during the starting andstopping of the feeding of the film and having a substantially constantfeed state after a predetermined length of film has been fed; recordingmeans for recording photograph information on the film; and controlmeans for causing said recording means to record said photographinformation on the film only during the substantially constant speedstate of said motor; wherein said film has a plurality of perforationsspaced in a feed direction of the film, and wherein said control meansincludes means for detecting passage of a predetermined number of filmperforations during feeding of the film and thereafter causing saidrecording means to record photograph information.
 9. Informationrecording apparatus in a camera, comprising:film feed means having amotor for feeding a film, the motor having a transient speed stateduring the starting and stopping of the feeding of the film and having asubstantially constant feed state after a predetermined length of filmhas been fed; recording means for recording photograph information onthe film; and control means for causing said recording means to recordsaid photograph information on the film only during the substantiallyconstant speed state of said motor; wherein said control means causessaid recording means to record finished photograph information,indicating that a corresponding film frame has been exposed, during saidtransient speed state.
 10. Information recording apparatus in a camera,comprising:film feed means having a motor for feeding a film; recordingmeans for recording finished photograph information on said filmindicating that a corresponding film frame has been exposed and forrecording other photograph information on said film; and control meansfor causing said recording means to record said finished photographinformation on the film while the motor is starting or stopping and forrecording said other photograph information on the film only when themotor speed is substantially constant, said finished photographinformation and said other photograph information being recorded atdifferent recording frequencies.
 11. Information recording apparatus ina camera, comprising:film feed means having a motor for feeding a filmhaving successive frames, the film having a recording area adjacent to afront end and/or a rear end of each film frame; detecting means fordetecting said recording area; recording means for recording onto saidrecording area finished photograph information indicating that acorresponding film frame has been exposed; and control means forcontrolling said recording means to enable said recording means as thefilm feeding is started and to disable said recording means inaccordance with a result of said detecting means.
 12. The apparatus asdefined in claim 11, wherein said motor has transient speed states whichare a starting state and a stopping state of the feeding of each filmframe and has a constant speed state between the transient speed states,and wherein the state of said motor during the recording by saidrecording means is said transient speed state.
 13. The apparatus asdefined in claim 11, wherein said detecting means comprises means fordetermining that a predetermined length of film has been fed during thefeeding of each film frame.
 14. The apparatus as defined in claim 11,wherein said detecting means comprises means for determining that apredetermined period of time has elapsed during the feeding of each filmframe.
 15. The apparatus as defined in claim 11, wherein said film feedmeans is capable of winding and rewinding said film, and said controlmeans causes said recording means to record finished photographinformation during film rewinding.
 16. The apparatus as defined in claim11, wherein said film has a photograph information recording area whichis different from the first-mentioned recording areas, wherein saiddetecting means detects said photograph information recording area, andwherein said recording means records onto said photograph informationrecording area photograph information different from said finishedphotograph information in accordance with a result of said detectingmeans.
 17. The apparatus as defined in claim 16, wherein said photographinformation recording area is disposed between first-mentioned recordingareas adjacent to the front and rear ends of each film frame.
 18. Theapparatus as defined in claim 16, wherein said motor has transient speedstates which are a starting state and a stopping state of the feeding ofeach film frame and has a constant speed state between the transientspeed states, and wherein the state of said motor during the recordingof said photograph information of said recording means is said constantspeed state.
 19. Information recording apparatus in a camera which iscapable of recording information onto a film, comprising:film feed meanshaving a motor for feeding a film having a plurality of perforationsspaced in a feed direction of the film; recording means for recordingphotograph information onto said film; detecting means for detecting anarea disposed on the film, onto which said photograph information isrecorded, in accordance with said perforations during feeding of thefilm, and control means for causing said recording means to record saidphotograph information onto the film in accordance with a result of saiddetecting means.
 20. The apparatus as defined in claim 19, wherein saidmotor has transient speed states which are a starting state and astopping state of the feeding of each film frame and has a constantspeed state after a predetermined length of film has been fed, andwherein said control means causes said recording means to record saidphotograph information.
 21. The apparatus as defined in claim 19,wherein said detecting means detects a time when said motor isdecelerated in accordance with said perforations during feeding of thefilm, and wherein said apparatus further comprises record controllingmeans for ceasing recording of said photograph information by saidrecording means in response to the detection of said time. 22.Information recording apparatus in a camera having an exposing unit toexpose successive film frames, comprising:a film feeding unit having amotor to feed a film having successive frames, the motor havingtransient speed states during starting and stopping of the feeding ofeach film frame and having a substantially constant speed state betweenthe transient speed states for the feeding of each film frame: arecorder responsive to said exposing unit to record finishedphotographing information indicating that a corresponding film frame hasbeen exposed; and a controller to cause said recorder to record finishedphotograph information only while said motor is in a transient speedstate.
 23. Information recording apparatus in a camera, comprising:afilm feeding unit having a motor to feed a film, the motor having atransient speed state during the starting and stopping of the feeding ofthe film and having a substantially constant speed state after apredetermined length of film has been fed: a recorder to recordphotograph information on the film: and a controller to cause saidrecorder to record said photograph information on the film only duringthe substantially constant speed state of said motor: wherein said filmhas a plurality of perforations spaced in a feed direction of the film,and wherein said controller includes a detector to detect passage of apredetermined number of film perforations during feeding of the film andthereafter to cause said recorder to record photograph information. 24.Information recording apparatus in a camera, comprising:a film feedingunit having a motor to feed a film, the motor having a transient speedstate during the starting and stopping of the feeding of the film andhaving a substantially constant speed state after a predetermined lengthof film has been fed; a recorder to record photograph information on thefilm; and a controller to cause said recorder to record said photographinformation on the film only during the substantially constant speedstate of said motor; wherein said controller causes said recorder torecord finished photograph information, indicating that a correspondingfilm frame has been exposed, during said transient speed state. 25.Information recording apparatus in a camera, comprising:a film feedingunit having a motor to feed a film: a recorder to record finishedphotograph information on said film indicating that a corresponding filmframe has been exposed and to record other photograph information onsaid film; and a controller to cause said recorder to record saidfinished photograph information on the film while the motor is startingor stopping and to record said other photograph information on the filmonly when the motor speed is substantially constant, said finishedphotograph information and said other photograph information beingrecorded at different recording frequencies.
 26. Information recordingapparatus in a camera, comprising:a film feeding unit having a motor tofeed a film having successive frames, the film having a recording areaadjacent to a front end and/or a rear end of each film frame; a detectorto detect said recording area; a recorder to record onto said recordingarea finished photograph information indicating that a correspondingfilm frame has been exposed; and a controller to control said recorderto enable said recorder as the film feeding is started and to disablesaid recorder in accordance with a result of said detector. 27.Information recording apparatus in a camera which is capable ofrecording information onto a film, comprising:a film feeding unit havinga motor to feed a film having a plurality of perforations spaced in afeed direction of the film; a recorder to record photograph informationonto said film; a detector to detect an area disposed on the film, ontowhich said photograph information is recorded, in accordance with saidperforations during feeding of the film, and a controller to cause saidrecorder to record said photograph information onto the film inaccordance with a result of said detector.
 28. Information recordingapparatus in a camera, comprising:film feeding means which can feed afilm in a winding direction and in a rewinding direction; informationrecording means for recording information on the film as the film isfed; information reproducing means for reproducing information recordedon the film as the film is fed; and controlling means for controllingthe film feeding means so that when the film is reloaded, recordedinformation is reproduced by the information reproducing means, whilesaid film feeding means feeds the film, and when an absence ofinformation recorded on the film is detected by the reproducing means, afeeding direction of the film is reversed to place an unexposed filmportion following an exposed film portion in a position in which theunexposed film portion is opposite an aperture of the camera.
 29. Theapparatus as defined in claim 28, wherein said controlling means feedsthe film by one exposing film portion after reversing the feedingdirection of the film.
 30. Information recording apparatus in a camera,comprising:a film feeding unit which can feed a film in a windingdirection and in a rewinding direction; a recorder to record informationon the film as the film is fed; a playback system to play back theinformation recorded on the film as the film is fed; and a controller tocontrol the film feeding unit so that when the film is reloaded,recorded information is played back while said film feeding unit feedsthe film, and when an absence of information recorded on the film isdetected by the playback system, a feeding direction of the film isreversed to place an unexposed film portion following an exposed filmportion in a position in which the unexposed film portion is opposite anaperture of the camera.